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Type: galaxy, Sc
Mag: B=16.09, V=15.41
Size: 1.621′ x 1.023′
Discovered by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "pB, R, vglbM, 40 arcseconds."
[1922BHarO.777Q...3S] "Five new planetary nebulae."
"On photographs made with the Bruce 24-inch telescope at Arequipa, Mr Mensel has found the following nebulae of the planetary class. The first is bi-nuclear, the second and third appear to be annular. The fifth object is NGC 7408."
The angular diameter is given as 1.2 arcminutes.
A photographic survey of bright southern planetary nebulae. M.N.R.A.S., 110(5), 429-439.
(Sulentic and Tifft 1973) notes that this is a galaxy.
The Messier objects
The Bennett objects
The Caldwell list
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